Ive never tried this on a Norton, but my BMW ABS needed bleeding and the only way to successfully do it was to pressure bleed it. I had tried vacuum, but no go on the ABS system. I affixed a nipple to a sacrificial reservoir cover and used a small weed sprayer filled with a pint of brake fluid . Worked slicker than snot.
A man's worth is not measured by what he has achieved...It is measured by what he went through to achieve it.
If you smile every time you flip on the garage light, you own the right motorcycle.